<template>
  <swiper :options="swiperOption">
    <swiper-slide v-for="(page, index) of pages" :key="index">
      <div class="icons">
        <div class="icon" v-for="item of page" :key="item.id">
          <div class="icon-img">
            <img :src="item.imgUrl" class="icon-img-content">
          </div>
          <p class="icon-desc">{{item.desc}}</p>
        </div>
        </div>
    </swiper-slide>
  </swiper>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
@import '~css/mixins.styl'
.icons
  display flex
  flex-wrap wrap /* 多行显示 */
  overflow hidden
  height 0
  padding-bottom 50%
  margin-top 0.1rem
  .icon
    position relative
    width 25%
    height 0
    padding-bottom 25%
    text-align center
    .icon-img
      position absolute
      top 0
      right 0
      bottom 0.44rem
      left 0
      box-sizing border-box
      padding 0.1rem
      .icon-img-content
        display block
        margin 0 auto
        height 100%
    .icon-desc
      position absolute
      right 0
      bottom 0
      left 0
      line-height 0.44rem
      text-align center
      color #333
      ellipsis()
</style>
